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Radiant|Lab Grown|IGI

3.21ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG675532318

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG675532318

Diamond specifications and retailer prices

From HK$53,115 HKD
$6,770 USD
As of October 29, 2026
6 retailers carry this diamond
Most expensive: HK$53,115 HKD at Brilliant Earth
View at Brilliant Earth

About this 3.21ct lab-grown radiant diamond

This 3.21ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG675532318 or 675532318. Listed at 6 retailers as of October 29, 2026. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.21
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle33.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG675532318
Dimensions11.09 × 7.43 × 4.74 mm
L/W Ratio1.49
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.09 mm7.43 mm3.21 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG675532318
Side View
Table 63.0%Crown 37.2°Girdle: MediumPavilion 33.3°Culet: NoneDepth 63.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: HK$53,115 HKD|Low: HK$7,587 HKD|High: HK$84,341 HKD|Avg: HK$31,335 HKD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 20
September 27, 2026
Retailer 20HK$10,631 HKD
Retailer 13HK$11,023 HKD
Retailer 17HK$12,279 HKD
Retailer 16HK$13,016 HKD
Retailer 8HK$14,059 HKD
Retailer 5HK$16,539 HKD
Retailer 2HK$17,563 HKD
Retailer 4HK$20,313 HKD
Retailer 10HK$22,674 HKD
Retailer 18HK$27,586 HKD
Retailer 3HK$29,414 HKD
Retailer 7HK$34,311 HKD
Retailer 19HK$36,404 HKD
Retailer 14HK$39,507 HKD
Retailer 9HK$41,956 HKD
Retailer 15HK$42,301 HKD
Retailer 11HK$42,739 HKD
Retailer 12HK$50,717 HKD
Brilliant EarthHK$53,115 HKD
Retailer 6HK$84,341 HKD

11 data points across 20 retailers

6 retailers

Retailer 1
-
HK$10,333 HKD
$1,317 USD
Price last confirmed 33 days ago
Retailer 2
-
HK$10,866 HKD
$1,385 USD
View
Price last confirmed 34 days ago
Retailer 3
-
HK$14,059 HKD
View
Price last confirmed 57 days ago
Retailer 4
-
HK$27,586 HKD
ZAR 56,802 ZAR
View
Price last confirmed 39 days ago
Retailer 5
-
HK$41,956 HKD
$5,348 USD
View
Price last confirmed 55 days ago
Most Expensive
B
Brilliant Earth
21305180Y · Oct 29
HK$53,115 HKD
$6,770 USD
View
5 more retailers have this diamond

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B
3.21ct Radiant
HK$53,115 HKD